The Liberal candidate for the federal seat of Pearce says he is confident criticism of the Western Australian Government will not adversely affect his electoral chances.

Christian Porter served as attorney-general and treasurer for part of the state Liberal-National Government's first term, before quitting to contest the semi-rural seat.

Since then, the Government has faced criticism for rising costs and spending cuts, among other issues.

However, Mr Porter says he believes voters will see that as a separate issue to what will be decided in Saturday's poll.

"The last couple of weeks for Colin Barnett's Government haven't been their absolute best but I do think that ultimately people realise in a seat like Pearce you've had six years of a Labor Government that, in my view and I must say the view of many others in the electorate, has been a very poor government," he said.

"People have noted that it has not been the best couple of weeks for the State Government but we've had six years of an absolutely tragically bad Labor Government. I think people want to get rid of that Government."

Labor's candidate for Pearce, Madeline West, says voters should take issues with the State Government into account.

"The State Government has really distanced itself and I do think some responsibility needs to be taken as both the state and federal coalitions are really distancing themselves from the issues," she said.

"Obviously there has been a few issues with the Liberal State Government. I'd like to think voters would take a look at that and perhaps reassess their vote and have a look at how they'll vote at a federal level."